| Year | Value (cubic meters per year) |
|---|---|
|
2020 |
641.97 |
|
2019 |
643.38 |
|
2018 |
644.8 |
|
2017 |
646.25 |
|
2016 |
647.77 |
|
2015 |
649.41 |
|
2014 |
651.18 |
|
2013 |
653.07 |
|
2012 |
655.08 |
|
2011 |
657.18 |
| Surface water produced internally | 11 | billion cubic meters per year (2020) |
| Groundwater produced internally | 4.5 | billion cubic meters per year (2020) |
| Overlap between surface and groundwater | 4.5 | billion cubic meters per year (2020) |
| Internal renewable water resources | 11 | billion cubic meters per year (2020) |